//
//  AppDelegate.swift
//  wobo
//
//  Created by 杨博宇 on 16/3/6.
//  Copyright © 2016年 杨博宇. All rights reserved.
//

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?


    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        // Override point for customization after application launch.
        
        //测试使用
//        UserAccount().loadUserInfo()
        
        //设置全局颜色
        setThemeColor()
        
        //注册通知
        registerNotification()
        
        //需要手动实例化window
        window = UIWindow(frame: UIScreen.mainScreen().bounds)
        window?.backgroundColor = UIColor.whiteColor()
        //设置根视图控制器
//        window?.rootViewController = MainViewController()
//        window?.rootViewController = Welc omeViewController()
        defaultRootViewController()

        
        //可视化window
        window?.makeKeyAndVisible()
        
        return true
    }
    
    
    
    //通知的监听方法 一般会带一个通知对象
    @objc private func changeRootVC(n: NSNotification) {
//        print(n)
//                let object = n.object
        //如果object 不为nil(oauth) 根视图控制器应该是 Welcome
        //如果为nil  根视图控制器就应该是 MainViewController
        window?.rootViewController = (n.object == nil) ? MainViewController() : WelcomeViewController()
    }

    
    private func registerNotification() {
        //注册通知
        //object: 关注谁发出的通知  如果为 nil  就是所有对象发出的通知都可以接受
        // 通知(object 不为 nil 表示的是通知) 广播(object 为nil)
        NSNotificationCenter.defaultCenter().addObserver(self, selector: "changeRootVC:", name: SwitchRootViewController, object: nil)
    }

    //移除通知  只有程序退出才会被调用
    //编码规范
    deinit {
        NSNotificationCenter.defaultCenter().removeObserver(self)
    }
    
    
    //设置根视图控制器
    //判断用户是否登录  用户登录显示欢迎页面 用户未登录 显示访客视图
    private func defaultRootViewController() {
        let rootVC = UserAccount.shareAccount.userLogin ? WelcomeViewController() : MainViewController()
        window?.rootViewController = rootVC
    }

    
    
    private func setThemeColor() {
        UINavigationBar.appearance().tintColor = themeColor
        UITabBar.appearance().tintColor = themeColor

    }
    
    
    
    
    
    

    func applicationWillResignActive(application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
    }

    func applicationDidEnterBackground(application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }

    func applicationWillEnterForeground(application: UIApplication) {
        // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
    }

    func applicationDidBecomeActive(application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    }

    func applicationWillTerminate(application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    }


}

